Monitoring Geomorphological Changes in the Peruvian Coast Using UAVs and PPK Techniques

Código

I-EBHE0209

Autores

MARIA CARDENAS GAUDRY, Lenin Ramirez Chambi, Edgar Cubas Arteaga

Tema

WG 1.12: Development & application of river basin simulators

Resumo

The coast of Peru is experiencing significant changes in its landscape due to environmental and climatic factors, with extreme precipitation playing a crucial role in altering the shapes of river channels and floodplains. This study proposes to address these changes using advanced technologies such as unmanned aerial vehicles (UAVs) and post-processing kinematic techniques (PPK), which involve co-registering point clouds using ground control points (GCPs). This approach will enable the creation of precise and stable digital elevation models (DEMs) over time, focusing on a 0.5 km² area in a Peruvian coastal basin, with data collection scheduled on two different dates. The main goal of this study is to identify areas with minimal elevation changes and quantify rates of erosion and sediment deposition over a specific period. It aims to measure erosion in gullies and riverbanks, as well as sediment deposition, to quantify volumes in cubic meters (m³). These data are crucial for enhancing understanding of regional geomorphological processes and developing effective management and mitigation strategies. In summary, this research focuses on monitoring geomorphological changes along the Peruvian coast using UAVs and PPK techniques, providing critical insights into sediment erosion and deposition. These findings will support sustainable water resource management and land use planning in Peru's coastal basins, thereby helping to mitigate the adverse impacts of extreme precipitation in the region.